Turret construction for vertical boring and turning mills.



F. F. CLARKE. TUBRET CONSTRUCTION FOR VERTICAL BORING AND TURNING MILLS. APPLICATION FILED 020.3. 1914. RENEWED MAY 10. 1916.

Patented J 11116 20, 1916.

'3 SHEETS-SHEET 1.

INVENTOR F. F. CLARKE.

TURHET CONSTRUCTION .FOR VERTICAL BORING AND TURNING MILLS.

APPLICATION FILED 65C. 3, ISM-RENEWED MAY I0} 1916.

- Patented June 20, 1916.

3 SHEETSSHEET 2.

INVENTOR WITNE5SES 'TRNE m2 COLUMBIA PLANDGRAPH c0., WASHINGTON, n. C-

F. F. CLARKE.

TURRET CONSTRUCTION FOR VERTICAL BORING AND TURNING MILLS.

APPLICATION FILED DEC. 3. 1914. RENEWED MAY 1'0, 191s.

Patented June 20, 1916.

3 SHEETS-SHEET 3- WITNESSES 'rmz COLUMBIA PLANOGRAPM co.. wnsrlmurofl. D. c.

@FFTmE,

FREDERICK F. CLARKE, 01E FRANKLIN, PENNSYLVANIA, ASSIG-NO-R 'IO GGLBURN MACHINE TOOL COMPANY, OF FRANKLIN, PENNSYLVANIA, A. CORPORATION :01 PENNSYLVANIA.

TURF/ET CONSTRUCTION FOR VERTICAL BORING AND TURNING MILLS.

Application filed. December 3, 1914, Serialllo. 875,333.

To all whom it may concern:

Be it known that I, FREDERICK F. CLARKE, citizen of the United States, residing at Franklin, in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Turret Construction for Vertical Boring and Turning Mills, of which the following is a specification.

The object, construction and operation of my improved turret for boring and turningmills, are herein set forth with suflicient clearness to enable those skilled in the art of boring-mill construction, to make and use the same.

The objects of this invention are, to provide an improved turret construction for vertical, boring and turning mills, the re volving mechanism for which will be more easy of access and operation than those commonly employed, and in addition thereto to provide the turret with a take-up device whereby any possible play or looseness, due to the revolubility of said turret or any wear occurring therein, may be taken up and positively eliminated, when the turret is locked for operation. The construction whereby I attain said objects, is clearly shown in the drawings, the various figures of which are as follows:

l igure 1 is a central, vertical section of my improved turret and slide. Fig. 2 is an elevation. of the rear face of the turret, a portion being broken away to expose the pinion which revolves the turret. F 3 is a front elevation of the turret-slide, with the turret removed. Fig. 4 is a central, vertical section of the turret, removed from the slide. Fig. 5 is a central, vertical section of the turret-slide with the turret removed.

In Fig. 1 and Fig. 4 I have shown but one tool-socket in the turret, but in actual practice, five are provided. Neither the number of sockets, however, nor the precise construction of the turret as it pertains to said sockets, are material to the embodiment of this invention.

The embodiment of my inventive idea as here illustrated, and which, as previously stated, relates to revolving and take-up mechanisms, is substantially as follows: The mount for the turret or turret-slide-- Fig. 3 and Fig. 5is provided with an an nular seat 1 for the reception of the Specification of Letters Patent.

Renewed May 10, 1916. Serial llo. 96,711.

turret,-Fig. 2 and Fig. l,-and upon which seat, the face 2 of said turret seats: Said turret is also provided with a rearnuirdlyprojecting, integral, annular feature, hub 3, which revolubly occupies the opening l in said slide. To the rearward face of said hub 8 is rigidly secured a take-up ring To the turret-slide at the rear of the opening -l-, is rigidly secured a base-plate 6, and positioned centrally in the same and extending therethrough, is a take-up screw '7, having an actuating-arm 8. lvlounted upon the screw 7, is a take-up plate 9, which is centrally screw-threaded for the reception and engagement of the thread of said take-up screw. Passing through the flange of said plate are dowel-screws 10 which are secured in said flange by means of its screw-threaded portion; the inner end or point of each of said screws is formed into a dowel 11, which enters a socket provided therefor in the baseplate; there being a number of said sockets as shown at 11 in Fig. 3, which are for the purpose of permitting adjustments of said plate 10.

By reference to Fig. 1 it will be readily noted that the inner face of the take-up plate 9 bears against the adjacent face of the take-up ring 5 of the turret, and that, by turning the take-up screw 7 slightly, the turret may be drawn firmly and securely to its seat, whereby any looseness due to the revolubility oi the turret or any wear resulting from revolving same may be taken up, thus causing said turret to have absolute rigidity of bearing and accuracy of operation at all times. To the actuatingarm 8 of screw 7 is secured one end of the actuating-rod 12; the other end of said rod being attached to a knuckle 13 that is operated by a lever 14:.

hen the turret is to be revolved, it is first unlocked, then lever l-fl is manually actuated so as to turn the screw 8 and cause an outward movement or disengagement of the take-up plate 9; said outward movement releases ring 5 from the inward pressure and take-up action of said plate against ring 5 and leaves the turret free to be revolved, by means which will presently be described. The dowel-pins 11 permit the outward-andinward movement of the take-up plate 9, but prevent the turning of same when screw 7 is actuated. If, at any time, on account of wear, it is founddesirable to readjust the take-up plate, thiscmay be done by removing screws 10 and turning said plate so that the dowels 11 may be reinserted into the supplementary adjusting-hles 11.

The usual form of locking-device is provided for the turret, and consists of a vertically, longitudinally-inovable lock 15, ac-

tuated to the unlocking position by a lever 20, and tothe locking position by means of the spring 21, which bears against the upper end of said lock. Secured'to the inner face of the turret, is a locking-ring 15 which is providedwith the lock-seats 15, which seats .slide, is securedaan annular rack or inter nal-gear 17 The turret is provided wlth a revoluble pinion 17 which is secured to a shaft 18 that passes revolubly through the turret and isprovided upon its outer end with a crank 19. By this means a convenient and easily-actuated revolving-mechanism is provided, which is within easy reach of the operator from his position in front of the machine.

, When the turret is to be revolved, or turned to bring the tools. contained in the respective sockets successively into the operative position, said take-up is first released by the actuation of lever 14; lock 15 is then disengaged from the locking-seat 1n ring 15, crank 19 .is then manipulated, and as the adjacent seat 15 comes into lock-receiving position, said lock is thrust into the same by the action of spring 20, which bears against the upper end of' said lock, thus locking the turret in position. The takeup device is then set by the actuation of said lever 14, whereby the turret is made as rigid and firm as though it were an integral portion of the slide which carries the same, thus complete accuracy of alinement and operation is secured.

. I i th following 1. A turret construction for boring mills consisting of a revoluble turret provided with suitable tool-sockets and having the rear face thereof formed into a seat, hub formed upon said face and positioned cent'ally thereof, a pinion mounted in said turret and arranged to revolve the same, means operable to revolve said pinion, a clamping ring secured to the inner end of said hub, in combination with a mount for said turret provided with a seating face adapted for the reception of the seating face of said turret, and provided also with consisting of a revoluble turret provided with suitable tool-sockets, and having the rear face thereof formed into a seat, a hub formed upon said face and positioned centrally thereof, a locking-ring secured to said face, a pinion mounted in said turret and arranged to revolve the same, means operable to revolve said pinion, a clamping-ring secured to the inner end of said hub, in combination with a mount for said turret provided with a seating face adapted for the reception of the seating-face of said turret and provided also with an opening for the reception of said hub, a locking-device adapted to engage said locking-ring, an internal-gear positioned within said opening, adapted to be engaged by said pinion, a base-plate rigidly secured to said mount at the rear of said opening, a screw rcvolubly mounted in said plate with its threaded end projecting outwardly therefroln, means operable to actuate said screw, and a clamping-plate engaged by said screw, and in turn engaging said clamping-ring, for the purpose of rigidly clamping said turret to said mount.

In testimony whereof I atlix my signature in presence of two witnesses.

FREDERICK F. CLARKE. Witnesses MARY B. ECKERT, RAY S. CLARKE.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentn,

' Washington, D. O. i 

